Gets or sets additional, application-specific information.
Assembly: System.Messaging (in System.Messaging.dll)
The message queue is filtered to ignore the property.
The property contains application-specific information that you can use to organize different types of messages. For example, you can use application-specific indexes. It is the responsibility of the application to interpret property information.
Whenever possible, you should include message data in the body of the message rather than the property.
When working with foreign queues, use the Extension property to specify message properties that do not exist in Message Queuing. As with the property, it is the responsibility of the application to understand the content of the Extension property.
- Full trust for the immediate caller. This member cannot be used by partially trusted code. For more information, see Using Libraries from Partially Trusted Code.
Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98, Windows CE, Windows Mobile for Smartphone, Windows Mobile for Pocket PC
The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.